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Abstract

Our objective was to compare the AI submission rate and pregnancies per artificial insemination (P/AI) at first service of lactating Holstein cows submitted to a Double-Ovsynch protocol and timed artificial insemination (TAI) versus artificial insemination (AI) to a detected estrus after...

Author(s)
Santos, V. G.; Carvalho, P. D.; Maia, C.; Carneiro, B.; Valenza, A.; Fricke, P. M.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 10, pp 8507-8517
Abstract

The objective of the present study was to evaluate the effects of clinical mastitis at the beginning of lactation on reproductive performance of dairy cows in Algeria. Calving to first insemination and calving to conception intervals, number of insemination per conception and conception rate at the ...

Author(s)
Bouamra, M.; Ghozlane, F.; Ghozlane, M. K.
Publisher
Academic Journals, Lagos, Nigeria
Citation
African Journal of Biotechnology, 2017, 16, 2, pp 91-95
Abstract

This study was conducted to assess the problems associated with the artificial insemination service in Essera woreda of Dawuro zone, southern Ethiopia from December, 2016 to August, 2017. The study was conducted using questionnaire survey and records in targeted human and dairy cow's population,...

Author(s)
Fentaye Kassa; Wubshet Wuletaw
Publisher
Academic Journals, Lagos, Nigeria
Citation
International Journal of Livestock Production, 2018, 9, 2, pp 24-28
AbstractFull Text

The objective of the study was to evaluate the use of estrous control treatments, determining genital status by ultrasonography, efficiency of detection and distribution of heat, and pregnancy in artificially inseminated cows. The work was carried out with 380 females. The cows was classified by...

Author(s)
Konrad, J. L.; Crudeli, G. A.
Publisher
Facultad de Ciencias Veterinarias de la Universidad Nacional del Nordeste (UNNE), Corrientes, Argentina
Citation
Revista Veterinaria, 2018, 29, 1, pp 18-21
Abstract

Artificial insemination is beginning to find its place in Algerian dairy cattle farms. The bovine artificial insemination (AI) assessments for a three-year period in the semi-arid wilaya of Sétif on 4 855 insemination acts carried out by 5 inseminators in 3 664 cows of 5 different breeds belonging...

Author(s)
Mouffok, C.; Allouni, A.; Semara, L.; Belkasmi, F.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2019, 31, 4, pp Article 49
AbstractFull Text

In the present study the effects of lecirelin acetate injections applied in different ways after artificial insemination on the pregnancy rate of cows were investigated. As a material, 180 cows showing the spontaneous oestrus between 50-120 days after parturation and having the sexual cycle at...

Author(s)
Can, C.; Yıldız, H.
Publisher
Harran Üniversitesi Veteriner Fakültesi, Șanlıurfa, Turkey
Citation
Harran Üniversitesi Veteriner Fakültesi Dergisi, 2018, 7, 1, pp 114-118
Abstract

Using a 5-d controlled internal drug-release (CIDR)-Cosynch resynchronization protocol, the objective of this study was to determine the effect of the initial GnRH injection on pregnancy per artificial insemination (P/AI) to the second artificial insemination in lactating Holstein dairy cows. On...

Author(s)
Spencer, J. A.; Carnahan, K.; Shafii, B.; Price, W. J.; Dalton, J.; Ahmadzadeh, A.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 9, pp 8524-8531
Abstract

In cattle artificial insemination plays not only a vital role in the successful establishment of pregnancy, which is a prerequisite for initiation of the subsequent lactation, but also in accelerating genetic improvement and facilitating the distribution of semen from genetically elite sires. The...

Author(s)
Diskin, M. G.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2018, 12, s1, pp s75-s84
Abstract

This experiment was designed to compare pregnancy rates in postpartum beef cows following split-time (STAI) or fixed-time (FTAI) artificial insemination. Estrus was synchronized for 671 cows at seven locations following administration of the 7-d CO-Synch + CIDR protocol (100 µg GnRH+CIDR insert...

Author(s)
Bishop, B. E.; Thomas, J. M.; Abel, J. M.; Poock, S. E.; Ellersieck, M. R.; Smith, M. F.; Patterson, D. J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 99, pp 48-52
Abstract

Objective: In this study, the transcriptome profile of cow experiencing miscarriage during peri-implantation was investigated. Methods: Total transcriptomes were checked by RNA sequencing, and the analyzed by bioinformatics methods, the differentially expressed genes (DEGs) were analysed with...

Author(s)
Zhao GuoLi; Li YanYan; Kang XiaoLong; Huang Liang; Li Peng; Zhou JingHang; Shi YuanGang
Publisher
Asian-Australasian Association of Animal Production Societies, Seoul, Korea Republic
Citation
Asian-Australasian Journal of Animal Sciences, 2019, 32, 1, pp 38-48

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